Improved plate for plowshare-blanks



WILLIAM PARLIN, OF CANTON, ILLINOIS.

Letters Patent No. 92,349, dated July 6, 1869.

IMPROVED PLATE FOR PLOWSHAR-BLANKS.

The Schedule referred to in these Letters Patent and making part of vthe Same- To all whom it may concern Be it known that I, WILLIAM PARLIN, of Canton,

in the county of Fulton, and in the State of Illinois,

In order to enable others skilled in the art to which my invention appertains, to make the same, I will now proceed to describe the manner in which the saine is hr may be performed, referring to the annexed drawings, in which- Figure 1 is a plan view of aslab rolled of uneven thickness.

Figure 2 is au edge view of the same. A

Figure 3 is a plan view of a share cut from the slab.

IFigure 4 is au edge view ofthe same.

Letter A represents a steel slab, which is rolled from four to six inches wide, and from ten to sixteen feet long, and whic'h`is then ont` into pieces of varying length, as may be required, so as to form the shares B. At certain distances apart, this slab is suddenly increased in thickness, by rolling, so as to form 'an elevation on the slab, the said elevation running oblique] y across the face, as seen in fig. 1. l

Cutting the slab into pieces, following the line marked c, the shares B are formed, leaving the thick part at the p'oint where it wears fastest.

By thus rolling the slabs, the share can not only be made more rapidly, but m'nch cheaper, and more easily.

Having thus described my invention,

What I claim as new, and desire to secure hy Letters Patent, is

A rolled plate of metal, for plowshare-blanks, of the shape herein described and shown, that is to say, with the raised or thickened portion extending obliquely across it, of sntiicient breadth to yield a thickened portion to two plowshares when divided centrally, as set forth. i

,In testimony that I claim the foregoing, I have here unto set-my hand, this 3d day of May, 1869.

Witnesses: WILLIAM PARLIN.

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